Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average snowfall in March
- Average snowfall days in March
- Average sea temperature in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
Upon the onset of March, Seattle witnesses an average high-temperature of a cool 50.5°F (10.3°C), showing a close resemblance to the prior month. The temperature in Seattle dips to an average of 37.4°F (3°C) during March nights.Humidity
The average relative humidity in March in Seattle is 82%.Rainfall
In March, in Seattle, the rain falls for 8.9 days. Throughout March, 0.35" (9mm) of precipitation is accumulated. Throughout the year, in Seattle, there are 84.2 rainfall days, and 5.2" (132mm) of precipitation is accumulated.Snowfall
Months with snowfall in Seattle are January through March and November. March is the last month it regularly snows. During 0.5 snowfall days, in March, Seattle aggregates 0.08" (2mm) of snow. Throughout the year, in Seattle, there are 4.8 snowfall days, and 0.94" (24mm) of snow is accumulated.Ocean temperature
In Seattle, in March, the average water temperature is 45.9°F (7.7°C).Note: Beware of 45.9°F (7.7°C) waters at 55.4°F (13°C), they're uninviting, and a dip below 50°F (10°C) has risks of breath loss and cold shock, contingent on health.
Daylight
In Seattle, the average length of the day in March is 11h and 57min.On the first day of the month, sunrise is at 6:47 am and sunset at 5:54 pm PST. On the last day of March, sunrise is at 6:47 am and sunset at 7:38 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.
Sunshine
The average sunshine in March is 6.3h.UV index
In March, the average daily maximum UV index in Seattle is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 3 in March transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Seattle in March?
What is the average humidity in March in Seattle?
How many days does it rain in March in Seattle?
What is the last month it snows in Seattle?
How cold is the water in March in Seattle?
How many hours of daylight does Seattle have in March?
When is the sunrise / sunset in March in Seattle?
When does Daylight Saving Time (DST) start in March in Seattle?
How many hours of sunshine does Seattle have in March?
How high is the UV index in March in Seattle?
Average temperature in March
Seattle, WA
- Average high temperature in March: 50.5°F
The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in March: 37.4°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (35.1°F).
Average pressure in March
Seattle, WA
- Average pressure in March: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in March
Seattle, WA
- Average wind speed in March: 5.3mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity in March
Seattle, WA
- Average humidity in March: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in March
Seattle, WA
- Average rainfall in March: 0.35"
The wettest month (with the highest rainfall) is December (0.87").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in March
Seattle, WA
- Average rainfall days in March: 8.9 days
The month with the highest number of rainy days is November (9.1 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in March
Seattle, WA
- Average snowfall in March: 0.08"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in March
Seattle, WA
- Average snowfall days in March: 0.5 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in March
Seattle, WA
- Average sea temperature in March: 45.8°F
The best month for swimming (with the highest average sea temperature) is August (53.5°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight in March /
Average sunshine in March
Seattle, WA
- Average daylight in March: 11h and 5min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in March: 6h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in March
Seattle, WA
- Average sunshine days in March: 18.6 days
The month with the most sunshine days is August (25.9 days).
The month with the least sunshine days is November (16.8 days).
Average UV index in March
Seattle, WA
- Average UV index in March: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in March
Seattle, WA
- Average cloud cover in March: 52
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in March
Seattle, WA
- Average visibility in March: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
Seattle, Washington, USA
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